Basic zinc carbonate|Zinc sulphate|Nickel sulfate|Nickel nitrate|Nickelous oxide--Jiangxi Datong Metallurgical Chemical Co., Ltd.

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Basic zinc carbonate

Zinc sulphate,heptahydrate

Basic zinc carbonate

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Molecular formula: ZnCO₃·2Zn(OH)₂·H₂O

Molecular weight: 342.23

Properties: white formless powder ,odorless and tasteless, relative density 4.42-4.45

Standard: Company standard DT-JSTSX-2006

Technical index: %

Item	Pharmaceutical material	Feedstuff additive	Desulphurizer	Rubber	Paint	Industry grade
Main assay (as Zn)≥	57.0-58.0	57.0-58.0	57.0-58.0	55.0-57.0	55.0-57.0	55.0-56.0
Loss on ignition ≤	25.0-28.0	25.0-28.0	25.0-28.0	25.0-32.0	25.0-32.0	28.0-35.0
Heavy metal (as Pb) ≤	0.001-0.01	0.001-0.01	0.05-0.1	0.1-0.2	0.1-0.2	0.2-0.4
Sulfate (as SO₄) ≤	0.05-0.6	0.05-0.6	0.6-1.0	0.6-1.0	0.6-1.0	---
Cd ≤	0.001	0.001	---	---	---	---
Moisture ≤	1.0-2.0	1.0-2.0	2.0-4.0	2.0-4.0	2.0-4.0	3.0-5.0
Residue on screen(wet 100um) ≤	1-3	1-3	3-5	3-5	3-5	5-8

Uses: basic zinc carbonate is used as skin protector, zinc supplement,astringent, or used in emulsion, artificial silk, petroleum , desulphurizer , catalyst. rubber, paint . .

Packing, transportation and storage: Packing is plastic woven bag lined with PE film bag , Net Wt. 25kg . size is : 580 × 1150mm . It should be protected by covers when transportation , avoid rain and moisture . in cool and dry place , avoid rain and moisture . far away from insolation and heat.